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3f94e58859
The sources for the test-cases gdb.arch/i386-mpx*.exp contain have_mpx functions that test whether the processor supports mpx instructions. OTOH, the test-cases are compiled using -mmpx -fcheck-pointer-bounds, which instrument all functions with mpx instructions. So, the function that is supposed to test whether mpx instruction are supported contains mpx instructions, which is a bit odd. We could fix this by: - factoring out the have_mpx function into a single source file, and - compiling it without "-mmpx -fcheck-pointer-bounds". But having the mpx support test as part of the test-cases seems like an unnecessary complication that makes the test-cases more difficult to analyze, reason about and modify. So we go one step further and factor out the mpx support test in into a gdb_caching_proc. Tested on x86_64-linux. gdb/testsuite/ChangeLog: 2021-01-12 Tom de Vries <tdevries@suse.de> * gdb.arch/i386-mpx-call.c (have_mpx): Remove. (main): Remove call to have_mpx. * gdb.arch/i386-mpx-call.exp: Use have_mpx. * gdb.arch/i386-mpx-map.c (have_mpx): Remove. (main): Remote call to have_mpx. * gdb.arch/i386-mpx-map.exp: Use have_mpx. * gdb.arch/i386-mpx-sigsegv.c (have_mpx): Remove. (main): Remove call to have_mpx. * gdb.arch/i386-mpx-sigsegv.exp: Use have_mpx. * gdb.arch/i386-mpx-simple_segv.c (have_mpx): Remove. (main): Remove call to have_mpx. * gdb.arch/i386-mpx-simple_segv.exp: Use have_mpx. * gdb.arch/i386-mpx.c (have_mpx): Remove. (main): Remote call to have_mpx. * gdb.arch/i386-mpx.exp: Use have_mpx. * lib/gdb.exp (have_mpx): New proc.
62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/* Test program for MPX map allocated bounds.
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Copyright 2015-2021 Free Software Foundation, Inc.
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Contributed by Intel Corp. <walfred.tedeschi@intel.com>
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<mircea.gherzan@intel.com>
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <stdlib.h>
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#define SIZE 5
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typedef int T;
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void
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foo (T *p)
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{
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T *x;
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#if defined __GNUC__ && !defined __INTEL_COMPILER
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__bnd_store_ptr_bounds (p, &p);
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#endif
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x = p + SIZE - 1;
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#if defined __GNUC__ && !defined __INTEL_COMPILER
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__bnd_store_ptr_bounds (x, &x);
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#endif
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/* Dummy assign. */
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x = x + 1; /* after-assign */
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return;
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}
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int
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main (void)
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{
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T *a = NULL;
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a = calloc (SIZE, sizeof (T)); /* after-decl */
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#if defined __GNUC__ && !defined __INTEL_COMPILER
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__bnd_store_ptr_bounds (a, &a);
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#endif
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foo (a); /* after-alloc */
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free (a);
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return 0;
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}
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